Twitter announces Twitter Alerts for SMS and push notifications during emergencies
We just saw Twitter broaden its use of push notifications  for tweets it thinks you might find interesting, and the social network  is now also expanding their use for a more serious matter. The company  has just announced a new Twitter Alerts feature, which it says will  deliver "accurate information from credible organizations" during an  emergency or natural disaster. To ensure you don't miss them, those  alerts will be delivered via SMS in addition to a push notification on  Android or iOS, and you won't be getting notifications from just anyone  who wants to send them. At launch, only a hundred odd NGOs and  governmental agencies in the U.S., Japan and Korea are able to send the  alerts, although Twitter says it will be expanding that to include  organizations in other countries. You can sign up to receive the alerts  by going to an organization's Alerts setup page; just add "/alerts" at  the end of its Twitter URL, or find it on Twitter's list of participating organizations.
ENGADGET